So other than the reference that the 7M was liscenced by the Cappies for the Canopians, I can't find any references to what Shadowhawks are made in the Magistry. There is a small passage about refurbishing the existing lines on Dunianshire, but again, no models.
The information isn't really out there. Project Phoenix states that "House Liao has purchased the license for producing the SHD-7M, ostensibly to add to its own forces and to sell to the Magistracy forces. House Liao then sublet their license to the Taurians in order to for [sic] solidifying their position in the alliance."
So there's no real indication that the Capellans did anything other than sell SHD-7Ms to the Canopians. No comment about selling them the license (like they did with the Taurians), so that doesn't help.
I believe the only stated, canon source we have for what Shadow Hawk the Magistracy produces goes back to the 1st Edition Periphery book, where on page 100 it states that Majesty Metals and Manufacturing produces on Dunianshire the
SHW-1 Shadow Hawk.
Of course, there's never been any SHW-1 variant that we've seen.
If I had to guess, I would say the standard 2H (pretty sure that's the standard), until the 3060's, when they started producing the 7M (can anyone not see the Capellans slipping the Magistracy the design on the sly?).
I suppose its possible that sometime during the Jihad (or after) they started to produce the 8L. There's no proof, but its a possibility, with no more evidence for or against than the 7M has.